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esp8266天气系统程序

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ID:1003378 发表于 2022-1-25 10:32 | 只看该作者 |只看大图 回帖奖励 |倒序浏览 |阅读模式
最近闲的没事看到我的8266开发板
突发奇想做了个迷你天气预报
用的是0.96寸oled屏幕
源码在下面 欢迎讨论修改

Arduino源程序如下:
  1. #include <ESP8266WiFi.h>
  2. #include <ArduinoJson.h>
  3. #include <Wire.h>
  4. #include "OLED.h"
  5. static const char logo[] PROGMEM={
  6. 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  7. 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  8. 0xff,0xff,0xff,0xff,0xff,0xff,0x7f,0x80,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  9. 0xff,0xff,0xff,0xff,0xff,0xff,0x03,0x00,0xf0,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  10. 0xff,0xff,0xff,0xff,0xff,0x7f,0x00,0x00,0x80,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  11. 0xff,0xff,0xff,0xff,0xff,0x0f,0x00,0x00,0x00,0xfe,0xff,0xff,0xff,0xff,0xff,0x7f,
  12. 0xff,0xff,0xff,0xff,0xff,0x03,0x00,0x00,0x00,0xf8,0xff,0xff,0xff,0xff,0xff,0x7f,
  13. 0xff,0xff,0xff,0xff,0xff,0xe0,0xff,0x03,0x00,0xe0,0xff,0xff,0xff,0xff,0xff,0x7f,
  14. 0xff,0xff,0xff,0xff,0x1f,0x1c,0xf0,0x1f,0x00,0x80,0xff,0xff,0xff,0xff,0xff,0x7f,
  15. 0xff,0xff,0xff,0xff,0x0f,0x00,0x80,0x7f,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0x7f,
  16. 0xff,0xff,0xff,0xff,0x0f,0x00,0x00,0xff,0x01,0x00,0xfc,0xff,0xff,0xff,0xff,0x7f,
  17. 0xff,0xff,0xff,0xff,0x07,0x00,0x00,0xfe,0x03,0x00,0xf8,0xff,0xff,0xff,0xff,0x7f,
  18. 0xff,0xff,0xff,0xff,0x03,0x00,0x00,0xfc,0x07,0x00,0xf8,0xff,0xff,0xff,0xff,0x7f,
  19. 0xff,0xff,0xff,0xff,0x01,0x00,0x00,0xf8,0x0f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,
  20. 0xff,0xff,0xff,0xff,0x00,0x00,0x00,0xf0,0x1f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,
  21. 0xff,0xff,0xff,0x3f,0x00,0x00,0x00,0xf0,0x1f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,
  22. 0xff,0xff,0xff,0x1f,0x00,0x00,0x00,0xf0,0x1f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,
  23. 0xff,0xff,0xff,0x1f,0x00,0x00,0x00,0xf0,0x1f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,
  24. 0xff,0xff,0xff,0x0f,0x00,0x00,0x00,0xf0,0x3f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,
  25. 0xff,0xff,0xff,0x07,0x00,0x00,0x00,0xf0,0x1f,0x00,0xf8,0xff,0xff,0xff,0xff,0x7f,
  26. 0xff,0xff,0xff,0x07,0x00,0x00,0x00,0xf0,0x0f,0x00,0xf8,0xff,0xff,0xff,0xff,0x7f,
  27. 0xff,0xff,0xff,0x03,0x00,0x00,0x00,0xf8,0x03,0x00,0xfc,0xff,0xff,0xff,0xff,0x7f,
  28. 0xff,0xff,0xff,0x01,0x00,0x00,0x00,0xfc,0x00,0x00,0x7e,0xff,0xff,0xff,0xff,0x7f,
  29. 0xff,0xff,0xff,0x01,0x00,0x00,0x00,0x7f,0x00,0x00,0x7f,0xf8,0xff,0xff,0xff,0x7f,
  30. 0xff,0xff,0xff,0x00,0x00,0x00,0x80,0x1f,0x00,0x80,0x7f,0xf8,0xff,0xff,0xff,0x7f,
  31. 0xff,0xff,0xff,0x00,0x00,0x00,0xe0,0x07,0x00,0xc0,0x3f,0xf0,0xff,0xff,0xff,0x7f,
  32. 0xff,0xff,0xff,0x00,0x00,0x00,0xf8,0x01,0x00,0xe0,0x3f,0xf0,0xff,0xff,0xff,0x7f,
  33. 0xff,0xff,0x7f,0x00,0x00,0x00,0x7f,0x00,0x00,0xf8,0x3f,0xf0,0xff,0xff,0xff,0x7f,
  34. 0xff,0xff,0x7f,0x00,0x00,0xe0,0x1f,0x00,0x00,0xfe,0x0f,0xf0,0xff,0xff,0xff,0x7f,
  35. 0xff,0xff,0x7f,0x00,0x00,0xf8,0x03,0x00,0x80,0xff,0x0f,0xf8,0xff,0xff,0xff,0x7f,
  36. 0xff,0xff,0x7f,0x00,0x00,0x7e,0x00,0x00,0xe0,0xff,0x01,0xf0,0xff,0xff,0xff,0x7f,
  37. 0xff,0xff,0x7f,0x00,0x00,0x1f,0x00,0x00,0xf8,0xff,0x00,0xf8,0xff,0xff,0xff,0x7f,
  38. 0xff,0xff,0x7f,0x00,0xc0,0x0f,0x00,0x00,0xfe,0x7f,0x00,0xfc,0xff,0xff,0xff,0x7f,
  39. 0xff,0xff,0x7f,0x00,0xe0,0x03,0x00,0x80,0xff,0x1f,0x00,0xfe,0xff,0xff,0xff,0x7f,
  40. 0xff,0xff,0x7f,0x00,0xf8,0x01,0x00,0xe0,0xff,0x07,0x00,0xfe,0xff,0xff,0xff,0x7f,
  41. 0xff,0xff,0x7f,0x00,0x7c,0x00,0x00,0xfc,0xff,0x00,0x00,0xfc,0xff,0xff,0xff,0x7f,
  42. 0xff,0xff,0x7f,0x00,0x3e,0x00,0x00,0xff,0x07,0x00,0x00,0xfc,0xff,0xff,0xff,0x7f,
  43. 0xff,0xff,0x7f,0x00,0x0f,0x00,0xc0,0xff,0x07,0x00,0x00,0xff,0xff,0xff,0xff,0x7f,
  44. 0xff,0xff,0xff,0x80,0x07,0x00,0xf0,0xff,0xff,0x0f,0xc0,0xff,0xff,0xff,0xff,0x7f,
  45. 0xff,0xff,0xff,0xc0,0x03,0x00,0xf8,0xff,0xff,0x3f,0xf8,0xff,0xff,0xff,0xff,0x7f,
  46. 0xff,0xff,0xff,0xc0,0x01,0x00,0xfe,0xf8,0xc7,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  47. 0xff,0xff,0xff,0xe1,0x01,0x00,0x7f,0xc0,0x03,0x87,0x00,0xfe,0xff,0xff,0xff,0x7f,
  48. 0xff,0xff,0xff,0xe1,0x00,0xc0,0x7f,0x80,0x01,0x86,0x00,0xfe,0xff,0xff,0xff,0x7f,
  49. 0xff,0xff,0xff,0x63,0x00,0xe0,0x7f,0x80,0x01,0x86,0x00,0xfe,0xff,0xff,0xff,0x7f,
  50. 0xff,0xff,0xff,0x63,0x00,0xe0,0x7f,0x8c,0x31,0x86,0xc3,0xff,0xff,0xff,0xff,0x7f,
  51. 0xff,0xff,0xff,0x67,0x00,0xc0,0x7f,0x8c,0x31,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,
  52. 0xff,0xff,0xff,0x6f,0x00,0xc0,0x7f,0x8c,0x31,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,
  53. 0xff,0xff,0xff,0x7f,0x00,0xc0,0x7f,0x8c,0x31,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,
  54. 0xff,0xff,0xff,0x7f,0x00,0xc0,0x7f,0x8c,0x31,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,
  55. 0xff,0xff,0xff,0xff,0x00,0x80,0x7f,0x80,0x01,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,
  56. 0xff,0xff,0xff,0xff,0x01,0x00,0x7f,0x80,0x01,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,
  57. 0xff,0xff,0xff,0xff,0x03,0x00,0x7c,0xc0,0x03,0x87,0x83,0xff,0xff,0xff,0xff,0x7f,
  58. 0xff,0xff,0xff,0xff,0x07,0x00,0xf8,0xff,0xff,0xf1,0xff,0xff,0xff,0xff,0xff,0x7f,
  59. 0xff,0xff,0xff,0xff,0x0f,0x00,0xe0,0xff,0x7f,0xf0,0xff,0xff,0xff,0xff,0xff,0x7f,
  60. 0xff,0xff,0xff,0xff,0x3f,0x00,0x00,0xfe,0x07,0xfc,0xff,0xff,0xff,0xff,0xff,0x7f,
  61. 0xff,0xff,0xff,0xff,0x7f,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  62. 0xff,0xff,0xff,0xff,0xff,0x03,0x00,0x00,0xe0,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  63. 0xff,0xff,0xff,0xff,0xff,0x0f,0x00,0x00,0xfc,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  64. 0xff,0xff,0xff,0xff,0xff,0x7f,0x00,0x80,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  65. 0xff,0xff,0xff,0xff,0xff,0xff,0x3f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  66. 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  67. 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  68. 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
  69. 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f
  70. };
  71. //GPIO4(SDA) GPIO5(SCL)
  72. OLED display(4, 5);
  73.   
  74. const char* ssid     = "xh003";         // XXXXXX -- 使用时请修改为当前你的 wifi ssid
  75. const char* password = "zxd+19901120=";         // XXXXXX -- 使用时请修改为当前你的 wifi 密码
  76. const char* host = "api.seniversecom";
  77. const char* APIKEY = "wcmquevztdy1jpca";        //API KEY
  78. const char* city = "shenzhen";
  79. const char* language = "en";//zh-Hans 简体中文  会显示乱码
  80.   
  81. const unsigned long BAUD_RATE = 115200;                   // serial connection speed
  82. const unsigned long HTTP_TIMEOUT = 5000;               // max respone time from server
  83. const size_t MAX_CONTENT_SIZE = 1000;                   // max size of the HTTP response
  84.   
  85. // 我们要从此网页中提取的数据的类型
  86. struct UserData {
  87.   char city[16];//城市名称
  88.   char weather[32];//天气介绍（多云...）
  89.   char temp[16];//温度
  90.   char udate[32];//更新时间
  91. };
  92.   
  93. WiFiClient client;
  94. char response[MAX_CONTENT_SIZE];
  95. char endOfHeaders[] = "\r\n\r\n";
  96.   
  97. /**
  98. * @Desc 初始化操作
  99. */
  100. void setup() {
  101.   WiFi.mode(WIFI_STA);     //设置esp8266 工作模式
  102.   Serial.begin(BAUD_RATE);
  103.   delay(10);
  104.   Serial.println();
  105.   Serial.println();
  106.   Serial.print("Connecting to ");//写几句提示，哈哈
  107.   Serial.println(ssid);
  108.   WiFi.begin(ssid, password);   //连接wifi
  109.   while (WiFi.status() != WL_CONNECTED) {
  110.     //这个函数是wifi连接状态，返回wifi链接状态
  111.     delay(100);
  112.     Serial.print(".");
  113.   }
  114.   Serial.println("");
  115.   Serial.println("WiFi connected");
  116.   delay(100);
  117.   Serial.println("IP address: ");
  118.   Serial.println(WiFi.localIP());//WiFi.localIP()返回8266获得的ip地址
  119.   client.setTimeout(HTTP_TIMEOUT);

  121. }
  122.   
  123. /**
  124. * @Desc  主函数
  125. */

  127. void loop() {
  128.    //初始化oled
  129.   display.begin();

  131.   //测试显示信息
  132.   display.print("Hello DOIT",2,3);
  133.   display.print("doitam",4,3);
  134.   delay(2*1000);
  135.   display.clear();

  137.   while (!client.connected()){
  138.      if (!client.connect(host, 80)){
  139.          Serial.println("connection....");
  140.          delay(100);
  141.      }
  142.   }
  143.   if (sendRequest(host, city, APIKEY) && skipResponseHeaders()) {
  144.     clrEsp8266ResponseBuffer();
  145.     readReponseContent(response, sizeof(response));
  146.     UserData userData;
  147.     if (parseUserData(response, &userData)) {
  148.       printUserData(&userData);
  149.     }
  150.   }
  151.   delay(300);//每5s调用一次
  152. }
  153.   
  154. /**
  155. * @发送请求指令
  156. */
  157. bool sendRequest(const char* host, const char* cityid, const char* apiKey) {
  158.   // We now create a URI for the request
  159.   //心知天气
  160.   String GetUrl = "/v3/weather/now.json?key=";
  161.   GetUrl += apiKey;
  162.   GetUrl += "&location=";
  163.   GetUrl += city;
  164.   GetUrl += "&language=";
  165.   GetUrl += language;
  166.   // This will send the request to the server
  167.   client.print(String("GET ") + GetUrl + " HTTP/1.1\r\n" +
  168.                "Host: " + host + "\r\n" +
  169.                "Connection: close\r\n\r\n");
  170.   Serial.println("create a request:");
  171.   Serial.println(String("GET ") + GetUrl + " HTTP/1.1\r\n" +
  172.                "Host: " + host + "\r\n" +
  173.                "Connection: close\r\n");
  174.   delay(100);
  175.   return true;
  176. }
  177.   
  178. /**
  179. * @Desc 跳过 HTTP 头，使我们在响应正文的开头
  180. */
  181. bool skipResponseHeaders() {
  182.   // HTTP headers end with an empty line
  183.   bool ok = client.find(endOfHeaders);
  184.   if (!ok) {
  185.     Serial.println("No response or invalid response!");
  186.   }
  187.   return ok;
  188. }
  189.   
  190. /**
  191. * @Desc 从HTTP服务器响应中读取正文
  192. */
  193. void readReponseContent(char* content, size_t maxSize) {
  194.   size_t length = client.peekBytes(content, maxSize);
  195.   delay(100);
  196.   Serial.println("Get the data from Internet!");
  197.   content[length] = 0;
  198.   Serial.println(content);
  199.   Serial.println("Read data Over!");
  200.   client.flush();//这句代码需要加上  不然会发现每隔一次client.find会失败
  201. }
  202.   
  203. /**
  204. * @Desc 解析数据
  205. * 数据格式如下：
  206. * {
  207. *    "results": [
  208. *        {
  209. *            "location": {
  210. *                "id": "WX4FBXXFKE4F",
  211. *                "name": "北京",
  212. *                "country": "CN",
  213. *                "path": "北京,北京,中国",
  214. *                "timezone": "Asia/Shanghai",
  215. *                "timezone_offset": "+08:00"
  216. *            },
  217. *            "now": {
  218. *                "text": "多云",
  219. *                "code": "4",
  220. *                "temperature": "23"
  221. *            },
  222. *            "last_update": "2017-09-13T09:51:00+08:00"
  223. *        }
  224. *    ]
  225. *}
  226. */
  227. bool parseUserData(char* content, struct UserData* userData) {
  228. //    -- 根据我们需要解析的数据来计算JSON缓冲区最佳大小
  229. //   如果你使用StaticJsonBuffer时才需要
  230. //    const size_t BUFFER_SIZE = 1024;
  231. //   在堆栈上分配一个临时内存池
  232. //    StaticJsonBuffer<BUFFER_SIZE> jsonBuffer;
  233. //    -- 如果堆栈的内存池太大，使用 DynamicJsonBuffer jsonBuffer 代替
  234.   DynamicJsonBuffer jsonBuffer;
  235.    
  236.   JsonObject& root = jsonBuffer.parseObject(content);
  237.    
  238.   if (!root.success()) {
  239.     Serial.println("JSON parsing failed!");
  240.     return false;
  241.   }
  242.    
  243.   //复制我们感兴趣的字符串
  244.   strcpy(userData->city, root["results"][0]["location"]["name"]);
  245.   strcpy(userData->weather, root["results"][0]["now"]["text"]);
  246.   strcpy(userData->temp, root["results"][0]["now"]["temperature"]);
  247.   strcpy(userData->udate, root["results"][0]["last_update"]);
  248.   //  -- 这不是强制复制，你可以使用指针，因为他们是指向“内容”缓冲区内，所以你需要确保
  249.   //   当你读取字符串时它仍在内存中
  250.   return true;
  251. }
  252.    
  253. // 打印从JSON中提取的数据
  254. void printUserData( struct UserData* userData) {
  255.   Serial.println("Print parsed data :");
  256.   display.print("City: ",0,0);
  257.   display.print(userData->city,0,6);
  258.   display.print("Weat: ",2,0);
  259.   display.print(userData->weather,2,6);
  260.   display.print("Temp: ",4,0);
  261.   display.print(userData->temp,4,6);
  262. // display.print("Last Updata : ",7,2);
  263. display.print(userData->udate,6,0);
  264. // display.print("\r\n");
  265. delay(4*1000);
  266. }
  267.    
  268. // 关闭与HTTP服务器连接
  269. void stopConnect() {
  270.   Serial.println("Disconnect");
  271.   client.stop();
  272. }
  273.   
  274. void clrEsp8266ResponseBuffer(void){
  275.     memset(response, 0, MAX_CONTENT_SIZE);      //清空
  276. }
复制代码


bin文件下载: ESP8266获取天气文件.zip (191.1 KB, 下载次数: 39)

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